scholarly journals Degradation of Remazol Red in batik dye waste water by contact glow discharge electrolysis method using NaOH and NaCl electrolytes

2017 ◽  
Author(s):  
Nelson Saksono ◽  
Dita Amelia Putri ◽  
Dian Ratna Suminar
Keyword(s):  
Waste Water ◽  
Glow Discharge ◽  
Contact Glow Discharge Electrolysis ◽  
Electrolysis Method ◽  
Glow Discharge Electrolysis ◽  
Remazol Red

scholarly journals Tofu wastewater treatment using contact glow discharge electrolysis method and air injection

2018 ◽  
Vol 67 ◽  
pp. 01004
Author(s):  
Nadira Kamilia Permatasari ◽  
Widya Pangestika ◽  
Nelson Saksono
Keyword(s):  
Glow Discharge ◽  
Environmental Pollutants ◽  
Air Injection ◽  
Oh Radicals ◽  
Airflow Rate ◽  
Initial Concentration ◽  
Contact Glow Discharge Electrolysis ◽  
Electrolysis Method ◽  
Reduce Energy Consumption ◽  
Glow Discharge Electrolysis

Tofu wastewater is one of the most dangerous source of environmental pollutants. It is known that the COD of tofu wastewater can reach 8000 mg/L. Contact Glow Discharge Electrolysis (CGDE) method is an effective method in degrading complex pollutants contained in tofu wastewater, due to its ability to produce large quantities of OH radicals. This study aims to test the ability of the CGDE method in degrading the tofu wastewater by the addition air injection. In this method, several variations were made to determine the optimal airflow rate and initial concentration of tofu wastewater. Tofu wastewater degradation reached 73% for 120 minutes, with the final value of COD is 425 mg/L and BOD is 447 mg/L. Maximum conditions are obtained by using airflow rate 2.5 lpm, temperature 50°C, and initial concentration of tofu wastewater is 2000 ppm. The addition of air injection with airflowrate 2.5 lpm is able to reduce energy consumption by 37%. The results show that CGDE with air injection has the potential to degrade pollution parameter in tofu wastewater.

scholarly journals Optimization of Fe2+ addition for degradation process of textile dye waste using contact glow discharge electrolysis with air injection

2018 ◽  
Vol 67 ◽  
pp. 03031
Author(s):  
Tulus Sukreni ◽  
Nadya Saarah Amelinda ◽  
Nelson Saksono ◽  
Setijo Bismo
Keyword(s):  
Glow Discharge ◽  
Batch Reactor ◽  
Cooling Water ◽  
Degradation Process ◽  
Air Injection ◽  
Textile Dye ◽  
Oh Radicals ◽  
Contact Glow Discharge Electrolysis ◽  
Glow Discharge Electrolysis ◽  
Remazol Red

This research determined the optimum concentration of Fe2+ to degrade waste textile dye by Contact Glow Discharge Electrolysis (CGDE) method with air injection. The addition of Fe2+ ions can increase the degradation rate of the dye waste due to the radical catalytic conversion of H2O2 producing OH radicals that play a significant role in the degradation process. Remazol Red was used as a dye synthetic dye which was degraded using a batch reactor equipped with continuous cooling water. Experimental results showed that waste concentrations of 100, 200, 300 and 400 ppm obtained the optimum Fe2+ concentration at 10, 20, 30 and 40 ppm, respectively. The higher concentration of dye waste indicated the higher the Fe2+ ion requirement to decrease the textile dye waste.

scholarly journals Pengaruh Kedalaman Anoda pada Metode Contact Glow Discharge Electrolysis (CGDE) dalam Degradasi Pewarna Tekstil Remazol Red

2018 ◽  
Vol 2 (2) ◽  
pp. 66
Author(s):  
Dian Ratna Suminar ◽  
Nelson Saksono
Keyword(s):  
Glow Discharge ◽  
Waste Treatment ◽  
Quality Standards ◽  
Degradation Process ◽  
Textile Dye ◽  
Contact Glow Discharge Electrolysis ◽  
Surrounding Environment ◽  
Glow Discharge Electrolysis ◽  
Remazol Red ◽  
Main Component

Limbah pewarna tekstil yang mempunyai  komponen utamanya zat pewarna sintesis berbahaya bagi lingkungan sekitar. Pengolahan limbah pewarna tekstil secara fisika dan biologi kurang efektif. Elektrolisis plasma dengan menggunakan metode Contact Glow Discharge Electrolysis (CGDE) merupakan bagian dari pengolahan secara kimiawi, yang efektif dalam mengolah limbah pewarna batik. Parameter kedalaman anoda sangat mempengaruhi dalam proses elektrolisis plasma metode CGDE. Tujuan penelitian ini adalah untuk mengetahui pengaruh kedalaman anoda terhadap produksi •OH, energi yang digunakan proses degradasi, persen dekolorisasi Remazol Red RB 133, serta mengetahui penurunan konsentrasi COD limbah pewarna batik Remazol Red RB 133. Kedalaman anoda dalam penelitian ini adalah 1,5 cm dimana produksi •OH sebesar 11,63 mmol dan energi proses selama 30 menit adalah 806,4 KJ. Persen dekolorisasi Remazol Red RB 133 pada konsentrasi 250 ppm, terbesar selama 30 menit mencapai 99,66 %, pada kedalaman 4,5 cm dengan energi 1075,212 KJ. Nilai COD limbah pewarna batik Remazol Red RB 133 menurun dari 169 mg/L menjadi 3,6 mg/L setelah proses CGDE selama 180 menit (sesuai dengan baku mutu limbah).Textile dye waste having the main component of synthetic dye is hazardous to the surrounding environment. Textile dye waste treatment is physically and biologically less effective. Electrolysis plasma that used Contact Glow Discharge Electrolysis (CGDE) method is part of chemical treatment. The anode depth parameters greatly affect the electrolysis CGDE method. The purpose of this study was to determine the effect of anode depth on • OH production, the energy used in the degradation process, percent decolorization of Remazol Red RB 133, as well as knowing the decrease in COD concentration of Remazol Red batik dye RB 133. The anode depth in this study is 1.5 cm where the production of OH • 11.63 mmol and the processing energy for 30 minutes is 806.4 KJ. The largest Percentage degradation of Remazol Red RB 133 at concentration 250 ppm is 99,66%, that’s  reach at depth 4.5 cm for 30 minutes  with energy 1075,212 KJ. COD value has decreased from 169 mg/L to 3,6 mg/L after 180 minutes CGDE process (conform to waste quality standards).

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